<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>阿文vue学习</title>
		<script src="https://cdn.staticfile.org/vue/2.4.2/vue.min.js"></script>
	</head>
	<body>
		<div id="app">
		  {{ message | capitalize }}
		</div>
		    
		<script>
		new Vue({
		  el: '#app',
		  data: {
		    message: 'runoob'
		  },
		  filters: {
		    capitalize: function (value) {
		      if (!value) return ''
		      value = value.toString()
		      return value.charAt(0).toUpperCase() + value.slice(1)
		    }
		  }
		})
	</body>
</html>
